DIY Electronics

Sunday, April 22, 2018

Building DIY Portable Handheld Multi-Channel Analyzer for Gamma Spectroscopy "GammaViewer-1.00"

The project has two parts: first is the NaI(Tl) detector with photomultiplier tube and internally installed driver, second part is the MCA that can count pulses and analyze energy range of the incoming signal. Here I'll show the photos of my build process for the project and if you'll have questions or will need components for yours projects then you are welcome to contact me.

Read the full article under the cut:

Gamma Spectroscopy with iPad Geiger Bot MCA

The detector has built in NaI(Tl) crystal, photomultiplier tube, high voltage and pulse amplifier. It connected to iPad Geiger Bot MCA

Eu-152 log.scale spectra:

Cs-137 spectra:

Co-60 + Cs-137 weak source (background mixed):

Saturday, January 13, 2018

How dosimeters are made...

Assembling SMD MyGeiger PRO in my lab.

Wednesday, December 27, 2017

DIY Multi-Channel Analyzer MCA project with Gamma Viewer Spectrometer

http://www.rhelectronics.net/store/diy-pic18-mca-kit-for-gamma-spectroscopy.html

Video of MCA module connected to Gamma Viewer portable Spectrometer:

You can purchase the MCA module on RH Electronics website. Recommended to buy as a set with compatible PMT pulse amplifier.
We also accept orders for manufacturing Gamma Viewer spectrometers with new NaI(Tl) crystals:

http://www.rhelectronics.net/store/portable-25x25-nai-tl-gamma-spectrometer-for-ipad-or-computer-spectroscopy.html

Arduino IDE Geiger Counter Kit ver.2 RH-K-GK-2-A

http://www.rhelectronics.net/store/arduino-ide-geiger-counter-dosimeter-diy-kit-with-lcd.html

What is new in this version?

Well-designed electrical scheme and improved PCB layout
True voltage feedback in PWM high voltage converter that allows now to drive 20Mega ohm load on 500V
Optimized software for fast count-rate condition
Second screen mode with CPS counter
Fast CPS bargraph with logarithmic scale (great for pancake tube or scint.probe)
Native support of 500V and 400V tubes, voltage is set with jumper switch
Two LED's with buzzer clicker and mute button
Switch between CPM or CPS screen with button

The kit is robust hardware that designed to drive a Geiger Tube while high voltage and pulse counting are controlled by one microcontroller. This is simple and educational project, however load capability and performance of the circuit allows to use this board also in more serious applications, like scientific research or extreme enthusiast tests. Second CPS screen mode with bargraph can be used with sensitive pancake GM tube or with externally connected scintillation probe.

As before you have: